ini_restore
(PHP 4, PHP 5)
ini_restore — Restores the value of a configuration option
说明
void ini_restore ( string $varname )Restores a given configuration option to its original value.
参数
- varname
-
The configuration option name.
返回值
没有返回值。
范例
Example #1 ini_restore() example 以上例程会输出：
<?php
$setting = 'y2k_compliance';
echo 'Current value for '' . $setting . '': ' . ini_get($setting), PHP_EOL;
ini_set($setting, ini_get($setting) ? 0 : 1);
echo 'New value for '' . $setting . '': ' . ini_get($setting), PHP_EOL;
ini_restore($setting);
echo 'Original value for '' . $setting . '': ' . ini_get($setting), PHP_EOL;
?>
Current value for 'y2k_compliance': 1
New value for 'y2k_compliance': 0
Original value for 'y2k_compliance': 1
参见
- ini_get() - Gets the value of a configuration option
- ini_get_all() - Gets all configuration options
- ini_set() - Sets the value of a configuration option
